package com.luzhikun.KnowledgeReview.model;

import java.util.UUID;

/**
 * @Author Rookie Coder
 * @Description 生成全世界唯一的 UUID子串
 * @Date
 **/
public class UUIDTest {
    public static void main(String[] args) {

        UUID uuid=UUID.randomUUID();
        String uuidstr=uuid.toString();

        System.out.println(uuidstr);
        System.out.println(uuidstr.length());

    }
}
